GE SELA36AT0100 Molded‑Case Circuit Breaker

Technical Specifications Module Type: Three‑Pole Molded‑Case Circuit Breaker Applicable System: Industrial and Power‑Plant Low‑Voltage Three‑Phase Power‑Distribution System Rated Frame Current: 100A Pole Count: 3‑Pole Protection Function: Long‑time‑delay overload protection, short‑time‑delay & instantaneous short‑circuit protection Rated Operating Voltage: Industrial low‑voltage three‑phase AC rating Installation Method: Panel‑mount / DIN‑rail compatible installation Operating Temperature: ‑20 ℃ to +65 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Certifications: CE, UL low‑voltage circuit‑breaker compliance

Functional Features Three‑phase circuit overload long‑time‑delay thermal protection for downstream power‑loop. Short‑circuit short‑time‑delay and instantaneous magnetic‑trip protection against severe‑fault current. Manual on‑off operation handle for local circuit switching. Built‑in trip mechanism automatically opens main contacts when protection‑trip condition occurs. Optional auxiliary‑contact function provides breaker‑status feedback signal to external monitoring system. High‑strength molded insulating housing provides mechanical and electrical safety protection.

Application Scenarios Overload and short‑circuit fault protection for power‑plant auxiliary‑power‑system low‑voltage three‑phase circuits. Main‑loop or branch‑loop protection inside industrial low‑voltage distribution cabinets. Spare‑part replacement for legacy GE molded‑case breaker installations.

Structural Characteristics High‑strength flame‑retardant molded‑case insulating housing. External manual operation handle for circuit closing and opening. Screw‑type main‑circuit terminals for incoming‑line and outgoing‑line power‑cable connection. Internal thermal‑overload bimetallic trip component and magnetic short‑circuit trip component. Optional auxiliary‑contact terminal block for breaker‑status signal output.

Working Principle Under normal operating condition, internal main contacts keep closed state and three‑phase power passes through breaker to downstream load. When circuit suffers continuous overload, bimetallic element heats up and deforms, triggers long‑time‑delay trip mechanism to open main contacts.

Installation Requirements Install breaker inside qualified low‑voltage distribution cabinet according to installation dimension requirement. Tighten main‑circuit incoming‑and‑outgoing‑line cable terminals with specified torque value.